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8167553 |
Electrical system for driving a propeller pitch change mechanism
A system adjusts the pitch of a variable pitch propeller having a non-rotating side and a rotating side. The rotating side of the propeller has a hub, a propeller blade mounted to the hub, a...
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6548913 |
Apparatus for generating power using wind energy
An apparatus for generating power using wind energy, including connecting shafts arranged around a boss and rotatably supported by the boss, pinions each fitted around the associated connecting...
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6276898 |
Variable pitch marine propeller
A variable-pitch marine propeller system has a propeller unit for mounting on a drive shaft, and a power unit including a stationary annular hydraulic cylinder for operating the propeller unit, a...
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5967753 |
Controllable-pitch propeller, especially for sport boats and other watercraft
A controllable-pitch propeller for a sport-type watercraft has a push rod eccentrically connected to each blade displaceable in a bore of the propeller hub. The push rod is sealed with respect to...
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5762474 |
Variable-pitch propeller assembly enabling pitch reversal during operation
A propeller unit, each blade (1) being fixed to a blade foot (2) rendered integral with a hub (3) rotating around an axis but mobile with respect to the hub on translation in the direction of the...
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5527154 |
Variable pitch boat prop
A variable pitch boat prop includes a hub fixed to the prop shaft, a sleeve surrounding the hub and having bearings which receive stub shafts from a plurality of blades. The stub shafts pivot in...
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4964822 |
Variable pitch propeller for watercraft
A watercraft has a hull and a hollow support body secured below the hull. A propeller drive shaft is disposed rotatably in the body with one end extending out of the body and is adapted for...
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4657484 |
Blade pitch varying means
Blade pitch varying means for use in a gas turbine engine are disclosed. The blade pitch varying means may be used on an engine with a single row or two counterrotating rows of variable pitch...
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4648847 |
Adjusting mechanism for variable pitch watercraft propellers
A mechanical linkage for adjusting propeller blades includes a two-armed lever arranged on the downstream side of the hub of a variable pitch propeller driven by a driving engine by means of a...
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4364711 |
Folding boat propeller
A boat propeller with foldable blades, a so-called folding propeller, in which the mounting axes of the blades in the hub are inclined towards the rotational axis of the hub, so that the blades are...
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4332526 |
Variable pitch propellers
A variable pitch propeller e.g. for light aircraft has blades which are mounted in a hub for rotation about their longitudinal axes. The ends of the blades entering the hub have a crown of...
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4242049 |
Foldable propeller
A foldable boat propeller comprising a hub to which the propeller blades are pivotally connected and which has two mutually turnable portions, one of which is fixedly secured to the propeller shaft...
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4231317 |
Boat propeller device
The invention relates to a boat propeller having rotatably journalled blades in its hub to enable shifting between forward and reverse without reversing the direction of rotation. The hub is...
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4179241 |
Full feathering, reversible pitch, constant RPM propeller
A pitch change slide is mounted for longitudinal movement on a propeller shaft hub adapter in turn secured to the engine shaft of an aircraft engine, the said slide carrying a plurality of toothed...
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4086025 |
Propellers with retractable blades
The present invention relates to a propeller with retractable blades arranged on a hub, said hub being limitedly rotatable in relation to the propeller drive shaft, each of said blades being...
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3958897 |
Variable pitch propeller
A variable pitch propeller assembly having a shaft mounted in a housing and operably connectable to a rotary power source. A means mounted on the shaft has a propeller blade pivotally mounted...
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3887817 |
Power generating device
A power generating device comprises a continuous elongated flexible loop member having opposite loop ends and adapted to be suspended in a current of flowing fluid. The loop member is trained...
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3600102 |
CONTROL ASSEMBLY FOR CONTROLLABLE PITCH PROPELLER
A rotatable nut and hub assembly having fluid passages therein communicating with a piston and cylinder assembly to control the pitch of propeller blades attached to the hub and a connector at the...
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3552348 |
MARINE PROPULSION DRIVE
A simple steering gear wherein a cylindrical member, into which a propeller shaft is slidably inserted, is connected to a rod in such a manner that the movement of the rod is transmitted to the...
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3549272 |
IMPROVEMENTS IN OR RELATING TO BLADING ARRANGEMENT FOR TURBOMACHINES
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3310118 |
Controllable pitch boat propeller
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3288228 |
Variable pitch and reversible propeller
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3275198 |
Air stream driven pumping system
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3262502 |
Manual controllable pitch propeller systems for motorboats
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3234816 |
Adjustment mechanism
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3177949 |
Reversible fan
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3095932 |
Variable-pitch blade propeller
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3000447 |
Propeller mechanism for marine vessels
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2950686 |
Variable centrifugal pump
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2851114 |
Adjustable pitch propeller
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